Answer:
Explanation:
How the resting membrane potential is established in a neuron. ... Ions move down their gradients via channels, leading to a separation of charge that ... through brief, controlled changes in the permeability of their cell membrane to particular ... If you did this, you would measure an electrical potential difference, or voltage, ...
Membrane permeability is affected by temperature, the type of solute present, and the degree of cell hydration. Increasing the temperature makes the membrane more unstable and very fluid. Lowering the temperature slows the speed of the membrane.
Action potentials, the main electrical signal produced by nerve cells, reflect changes in membrane permeability to specific ions.
The important point is that increasing Na + permeability causes more depolarization, resulting in the opening of more Na + channels and further depolarization of the membrane potential.
Membrane permeability to water and solute has been shown to depend on temperature, the osmotic pressure of the medium, the type of solute present, the degree of cell hydration, and the presence or absence of ice.
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